I have a samsung galaxy tab 7 Plus. I was able to load music and movies on my external sd card. I watched movies and listened to my music. Now, I cannot read any data on my external sd card. I removed my sd card and re-inserted with no success. I viewed my sd data on my computer and re-inserted with no success. Samsung Live Chat said to reformat and download the data back to the sd card, I did that with no success. Can anyone help me?